[PATCH v5 04/13] mm: Add readahead address space operation

[Christoph Hellwig]

On Mon, Feb 10, 2020 at 05:03:39PM -0800, Matthew Wilcox wrote:
> +struct readahead_control {
> +	struct file *file;
> +	struct address_space *mapping;
> +/* private: use the readahead_* accessors instead */
> +	pgoff_t start;
> +	unsigned int nr_pages;
> +	unsigned int batch_count;

We often use __ prefixes for the private fields to make that a little
more clear.